Insulating material



FIG. 1 is a perspective view of the insulating material in a slightlyfolded state;

FIG. 2 is a perspective view of the insulating material in a flat state;

FIG. 3 is an edge detail perspective view of the insulating material;and,

FIG. 4 is another edge detail perspective view of the insulatingmaterial.

I claim the ornamental design for insulating material, as shown anddescribed.